Annals of Coloproctology

Case Report

Benign bowel disease

A case report of a giant solitary juvenile polyp: from obstructed defecation syndrome to incontinence: Zhan Huai Teoh, Jien Yen Soh, Nasibah Mohamad, Norzaliana Zawawi, Andee Dzulkarnaen Zakaria, Zaidi Zakaria, Michael Pak-Kai Wong; Ann Coloproctol. 2024;40(Suppl 1):S27-S31. Published online November 25, 2022; DOI: https://doi.org/10.3393/ac.2022.00549.0078

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Abstract PDF: Juvenile polyps (JPs) are the most common polyps in pediatric patients. We present the case of an 18-year-old male patient with a giant solitary JP resembling solitary rectal ulcer syndrome (SRUS). The presenting history was rectal bleeding and symptoms of obstructed defecation syndrome. Colonoscopy revealed a polypoidal mass at the anorectal junction, with biopsy-confirmed SRUS. The symptoms worsened, and a protruding mass from the anus caused fecal incontinence. Pelvic magnetic resonance imaging showed a huge pedunculated mass occupying the low rectum with local compression of the urinary bladder. Transanal excision of the anal tumor was performed due to bleeding. A histopathological examination showed a JP with high-grade dysplasia. A histological examination to differentiate JPs and SRUS could be challenging based on a superficial forceps biopsy. Therefore, an excision biopsy is usually warranted with the understanding that adenomatous or malignant transformation is found in 5.6% to 12% of all JPs.

Review

Translational/basic research

Tissue engineering and regenerative medicine approaches in colorectal surgery: Bigyan B. Mainali, James J. Yoo, Mitchell R. Ladd; Ann Coloproctol. 2024;40(4):336-349. Published online August 30, 2024; DOI: https://doi.org/10.3393/ac.2024.00437.0062

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Abstract PDF: Tissue engineering and regenerative medicine (TERM) is an emerging field that has provided new therapeutic opportunities by delivering innovative solutions. The development of nontraditional therapies for previously unsolvable diseases and conditions has brought hope and excitement to countless individuals globally. Many regenerative medicine therapies have been developed and delivered to patients clinically. The technology platforms developed in regenerative medicine have been expanded to various medical areas; however, their applications in colorectal surgery remain limited. Applying TERM technologies to engineer biological tissue and organ substitutes may address the current therapeutic challenges and overcome some complications in colorectal surgery, such as inflammatory bowel diseases, short bowel syndrome, and diseases of motility and neuromuscular function. This review provides a comprehensive overview of TERM applications in colorectal surgery, highlighting the current state of the art, including preclinical and clinical studies, current challenges, and future perspectives. This article synthesizes the latest findings, providing a valuable resource for clinicians and researchers aiming to integrate TERM into colorectal surgical practice.

Original Articles

Colorectal cancer

Public effect of the 2022 Colorectal Cancer Awareness Campaign delivered through a metaverse platform: Tae-Gyun Lee, Gil-Hyeon Song, Hong-min Ahn, Heung-Kwon Oh, Moonkyoung Byun, Eon Chul Han, Sohyun Kim, Chang Woo Kim, Hye Jin Kim, Samin Hong, Kee-Ho Song, Chan Wook Kim, Yong Beom Cho, on behalf of the Public Relations Committee of the Korean Society of Coloproctology (KSCP); Ann Coloproctol. 2024;40(2):145-153. Published online April 28, 2023; DOI: https://doi.org/10.3393/ac.2023.00122.0017

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Graphical Abstract Abstract PDF

Purpose
The Korean Society of Coloproctology has been conducting Colorectal Cancer Awareness Campaign, also known as the Gold Ribbon Campaign, every September since 2007. The 2022 campaign was held through a metaverse platform targeting the younger age group under the slogan of raising awareness of early-onset colorectal cancer (CRC). This study aimed to analyze the impact of the 2022 campaign on a metaverse platform.
Methods
Anonymized survey data were collected from participants in the metaverse campaign from September 1 to 15, 2022. The satisfaction score of the participants was evaluated by sex, age group, and previous campaign participation status.
Results
During the campaign, 2,770 people visited the metaverse. Among them, 455 people participated in the survey (response rate, 16.4%). Approximately 95% of the participants reported being satisfied with the information provided by the campaign, understood the necessity of undergoing screening for and prevention of early-onset CRC, and were familiar with the structure of the metaverse. The satisfaction score for campaign information tended to decrease as the participants’ age increased. When the participants’ overall level of satisfaction with the metaverse platform was assessed, teenagers scored particularly lower than the other age groups. The satisfaction scores for CRC information provided in the metaverse, as well as the scores for recognizing the seriousness and necessity of screening for early-onset CRC, indicated a high positive tendency (P<0.001).
Conclusion
Most of the 2022 Gold Ribbon Campaign participants were satisfied with the metaverse platform. Medical society should pay attention to increasing participation in and satisfaction with future public campaigns.

Citations

Citations to this article as recorded by

#CRCandMe: results of a pre-post quasi-experimental study of a mass media campaign to increase early-onset colorectal cancer awareness in Utah and Wisconsin
Ami E Sedani
American Journal of Cancer Research.2024; 14(8): 3873. CrossRef

Colorectal cancer

Comparing the efficacy of combined versus single immune cell adaptive therapy targeting colorectal cancer: Denis Nchang Che, NaHye Lee, Hyo-Jung Lee, Yea-Won Kim, Solongo Battulga, Ha Na Lee, Won-Kook Ham, Hyunah Lee, Mi Young Lee, Dawoon Kim, Haengji Kang, Subin Yun, Jinju Park, Daeyoun David Won, Jong Kyun Lee; Ann Coloproctol. 2024;40(2):121-135. Published online April 22, 2024; DOI: https://doi.org/10.3393/ac.2023.00402.0057

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Abstract PDF Supplementary Material: Purpose
Colorectal cancer (CRC) is the most frequent cancer with limited therapeutic achievements. Recently, adoptive cellular immunotherapy has been developed as an antitumor therapy. However, its efficacy has not been tested in CRC. This study investigated the ability of an immune cell cocktail of dendritic cells (DCs), T cells, and natural killer (NK) cells to overcome immunological hurdles and improve the therapeutic efficacy of cell therapy for CRC.
Methods
CRC lysate-pulsed monocyte-derived DCs (Mo-DCs), CRC antigen-specifically expanded T cells (CTL), and in vitro-expanded NK cells were cultured from patient peripheral blood mononuclear cells (PBMC). The ability of the combined immune cells to kill autologous tumor cells was investigated by co-culturing the combined immune cells with patient-derived tumor cells.
Results
The Mo-DCs produced expressed T cell co-stimulating molecules like CD80, CD86, human leukocyte antigen (HLA)-DR and HLA-ABC, at high levels and were capable of activating naive T cells. The expanded T cells were predominantly CD8 T cells with high levels of CD8 effector memory cells and low levels of regulatory T cells. The NK cells expressed high levels of activating receptors and were capable of killing other cancer cell lines (K562 and HT29). The immune cell cocktail demonstrated a higher ability to kill autologous tumor cells than single types. An in vivo preclinical study confirmed the safety of the combined immune cell adaptive therapy showing no therapy-related death or general toxicity symptoms.
Conclusion
The results suggested that combined immune cell adaptive therapy could overcome the limited efficacy of cell immunotherapy.

Anorectal benign disease

Laser hemorrhoidoplasty in the treatment of symptomatic hemorrhoids: a pilot Australian study: Anshini Jain, Chen Lew, Gamze Aksakal, Richard Hiscock, Naseem Mirbagheri; Ann Coloproctol. 2024;40(1):52-61. Published online May 19, 2022; DOI: https://doi.org/10.3393/ac.2022.00164.0023

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8 Citations

Graphical Abstract Abstract PDF

Purpose
Traditional therapeutic approaches to the surgical management of hemorrhoid disease such as hemorrhoidectomies are plagued with severe postoperative pain and protracted recovery. Our pilot study aims to the laser hemorrhoidoplasty (LH) patients with symptomatic hemorrhoid disease that have failed conservative management for the first time in an Australian population.
Methods
Thirty patients were prospectively enrolled to undergo LH. Postoperative pain, time to return to function, and quality of life (QoL) were determined through the Hemorrhoid Disease Symptom Score and Short Health Scale adapted for hemorrhoidal disease and compared to a historical group of 43 patients who underwent a Milligan-Morgan hemorrhoidectomy by the same surgeon at 3, 6, and 12 months.
Results
The LH group had significantly lower mean predicted pain scores on days 1 and 2 and lower defecation pain scores and lower opioid analgesia use on days 1, 2, 3, and 4. The median time to return to normal function was significantly lower in the LH group (2 days vs. 9 days, P<0.001). Similarly, the median days to return to the workplace was significantly lower in the LH group (6 days vs. 13 days, P=0.007). During long-term follow-up (12 months), hemorrhoid symptoms and all QoL measures were significantly improved, especially among those with grade II to III disease.
Conclusion
This pilot study demonstrates low pain scores with this revivified procedure in an Australian population, indicating possible expansion of the therapeutic options available for this common condition. Further head-to-head studies comparing LH to other hemorrhoid therapies are required to further determine the most efficacious therapeutic approach.

Citations

Citations to this article as recorded by

Laser hemorrhoidoplasty versus LigaSure™ hemorrhoidectomy versus diathermy hemorrhoidectomy in treatment of grade III and IV Hemorrhoids: A non-randomized prospective trial
Mohammad Ashour Khadr, Walid Galal El Shazly, Mohamed Mazloum Zakria, Ahmed Mohamed Moaz
Surgery Open Digestive Advance.2024; 13: 100129. CrossRef
Comparison of Laser Hemorrhoidoplasty and Milligan-Morgan Hemorrhoidectomy Techniques in the Treatment of Grade 2 and 3 Hemorrhoidal Disease
Adas Cemil, Kesici Ugur, Genc M. Salih, Karadag Merve, Duman M. Guray, Boluk S. Emine
The American Surgeon™.2024; 90(4): 662. CrossRef
Global International Society of University Colon and Rectal Surgeons in collaboration with European Society of Coloproctology audit on office‐based and surgical treatment of haemorrhoidal disease: Study protocol
Audrius Dulskas, Dovile Cerkauskaite, Joseph Nunoo‐Mensah, Richard Fortunato, Gaetano Gallo, Alaa El Hussuna, Varut Lohsiriwat, Tomas Aukstikalnis, Narimantas E. Samalavicius
Colorectal Disease.2024; 26(6): 1266. CrossRef
The efficacy of laser haemorrhoidoplasty (LHP) in the treatment of symptomatic haemorrhoidal disease: An observational cohort study
Nadim H. P. Boerhave, Rutger J. Klicks, Kemal Dogan
Colorectal Disease.2023; 25(6): 1202. CrossRef
Comparing outcomes of laser hemorrhoidoplasty and LigaSure hemorrhoidectomy in grade II–III hemorrhoidal disease: a retrospective analysis
Haluk Tümer, Mevlüt Harun Ağca
ANZ Journal of Surgery.2023; 93(7-8): 1885. CrossRef
Comparison of the efficacy of LigaSure and laser for grade 2-3 hemorrhoids
Ali Kemal Taşkin, Bülent Özçetin
Journal of Clinical Medicine of Kazakhstan.2023; 20(4): 33. CrossRef
Laser hemorrhoidoplasty combined with blind hemorrhoidal artery ligation compared to Milligan–Morgan hemorrhoidectomy in patients with second and third degree piles; a prospective randomized study
Amir F. Abdelhamid, Mohamed M. Elsheikh, Osama H. Abdraboh
The Egyptian Journal of Surgery.2023; 42(3): 669. CrossRef
Laser hemorrhoidoplasty for hemorrhoidal disease: a systematic review and meta-analysis
Hendry Lie, Evelyn Franca Caesarini, Antonius Agung Purnama, Andry Irawan, Taufik Sudirman, Wifanto Saditya Jeo, Bernardus Parish Budiono, Erik Prabowo, M. Iqbal Rivai, Ryanto Karobuana Sitepu
Lasers in Medical Science.2022; 37(9): 3621. CrossRef

Colorectal cancer

Long-term clinical outcomes after high and low ligations with lymph node dissection around the root of the inferior mesenteric artery in patients with rectal cancer: Min Wan Lee, Sung Sil Park, Kiho You, Dong Eun Lee, Dong Woon Lee, Sung Chan Park, Kyung Su Han, Dae Kyung Sohn, Chang Won Hong, Bun Kim, Byung Chang Kim, Hee Jin Chang, Dae Yong Kim, Jae Hwan Oh; Ann Coloproctol. 2024;40(1):62-73. Published online February 26, 2024; DOI: https://doi.org/10.3393/ac.2023.00094.0013

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Graphical Abstract Abstract PDF: Purpose
This study aimed to evaluate the long-term clinical outcomes based on the ligation level of the inferior mesenteric artery (IMA) in patients with rectal cancer.
Methods
This was a retrospective analysis of a prospectively collected database that included all patients who underwent elective low anterior resection for rectal cancer between January 2013 and December 2019. The clinical outcomes included oncological outcomes, postoperative complications, and functional outcomes. The oncological outcomes included overall survival (OS) and relapse-free survival (RFS). The functional outcomes, including defecatory and urogenital functions, were analyzed using the Fecal Incontinence Severity Index, International Prostate Symptom Score, and International Index of Erectile Function questionnaires.
Results
In total, 545 patients were included in the analysis. Of these, 244 patients underwent high ligation (HL), whereas 301 underwent low ligation (LL). The tumor size was larger in the HL group than in the LL group. The number of harvested lymph nodes (LNs) was higher in the HL group than in the LL group. There were no significant differences in complication rates and recurrence patterns between the groups. There were no significant differences in 5-year RFS and OS between the groups. Cox regression analysis revealed that the ligation level (HL vs. LL) was not a significant risk factor for oncological outcomes. Regarding functional outcomes, the LL group showed a significant recovery in defecatory function 1 year postoperatively compared with the HL group.
Conclusion
LL with LNs dissection around the root of the IMA might not affect the oncologic outcomes comparing to HL; however, it has minimal benefit for defecatory function.

Colorectal cancer

Stratification of rate of lymph node metastasis according to risk factors and oncologic outcomes in patients who underwent radical resection for rectal neuroendocrine tumors: Myung Jae Jin, Sung Sil Park, Dong-Eun Lee, Sung Chan Park, Dong Woon Lee, Kiho You, Hee Jin Chang, Chang Won Hong, Dae Kyung Sohn, Kyung Su Han, Bun Kim, Byung Chang Kim, Jae Hwan Oh; Ann Coloproctol. 2023;39(6):467-473. Published online April 28, 2023; DOI: https://doi.org/10.3393/ac.2022.00913.0130

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Abstract PDF Supplementary Material

Purpose
Most predictive factors for lymph node metastasis in rectal neuroendocrine tumors (NETs) have been based on local and endoscopic resection. We aimed to evaluate the risk factors for lymph node metastasis in patients who underwent radical resection for rectal NETs and stratify the risk of lymph node metastasis.
Methods
Sixty-four patients who underwent radical resection for rectal NETs between January 2001 and January 2018 were included. We investigated the risk factors of lymph node metastasis using clinicopathologic data. We also performed a risk stratification for lymph node metastases using the number of previously known risk factors. For oncologic outcomes, the 5-year overall survival and recurrence-free survival were evaluated in both groups.
Results
Among the patients who underwent radical surgery, 32 (50.0%) had lymph node metastasis and 32 (50.0%) had non–lymph node metastasis. In the multivariable analysis, only the male sex was identified as a risk factor for lymph node metastasis (odds ratio, 3.695; 95% confidence interval, 1.128–12.105; P=0.031). When there were 2 or more known risk factors, the lymph node metastasis rate was significantly higher than when there were one or no risk factors (odds ratio, 3.667; 95% confidence interval, 1.023–13.143; P=0.046). There was also no statistical difference between the 2 groups in 5-year overall survival (P=0.431) and 5-year recurrence-free survival (P=0.144).
Conclusion
We found that the rate of lymph node metastasis increased significantly when the number of known risk factors is 2 or more.

Citations

Citations to this article as recorded by

Lateral pelvic lymph nodes dissection of rectal neuroendocrine neoplasms: A prospective case-series and literature review
Yueyang Zhang, Yi Yang, Changyuan Gao, Hong Zhao, Haitao Zhou
Surgery.2024;[Epub] CrossRef

Reviews

Colorectal cancer

Essential anatomy for lateral lymph node dissection: Yuichiro Yokoyama, Hiroaki Nozawa, Kazuhito Sasaki, Koji Murono, Shigenobu Emoto, Hiroyuki Matsuzaki, Shinya Abe, Yuzo Nagai, Yuichiro Yoshioka, Takahide Shinagawa, Hirofumi Sonoda, Daisuke Hojo, Soichiro Ishihara; Ann Coloproctol. 2023;39(6):457-466. Published online December 8, 2023; DOI: https://doi.org/10.3393/ac.2023.00164.0023

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2 Citations

Abstract PDF

In Western countries, the gold-standard therapeutic strategy for rectal cancer is preoperative chemoradiotherapy (CRT) following total mesorectal excision (TME), without lateral lymph node dissection (LLND). However, preoperative CRT has recently been reported to be insufficient to control lateral lymph node recurrence in cases of enlarged lateral lymph nodes before CRT, and LLND is considered necessary in such cases. We performed a literature review on aspects of pelvic anatomy associated with rectal surgery and LLND, and then combined this information with our experience and knowledge of pelvic anatomy. In this review, drawing upon research using a 3-dimensional anatomical model and actual operative views, we aimed to clarify the essential anatomy for LLND. The LLND procedure was developed in Asian countries and can now be safely performed in terms of functional preservation. Nonetheless, the longer operative time, hemorrhage, and higher complication rates with TME accompanied by LLND than with TME alone indicate that LLND is still a challenging procedure. Laparoscopic or robotic LLND has been shown to be useful and is widely performed; however, without a sufficient understanding of anatomical landmarks, misrecognition of vessels and nerves often occurs. To perform safe and accurate LLND, understanding the landmarks of LLND is essential.

Citations

Citations to this article as recorded by

The role of lateral pelvic lymph node dissection in advanced rectal cancer: a review of current evidence and outcomes
Gyu-Seog Choi, Hye Jin Kim
Annals of Coloproctology.2024; 40(4): 363. CrossRef
Dissection layer selection based on an understanding of pelvic fascial anatomy in transanal total mesorectal excision
Daichi Kitaguchi, Masaaki Ito
Annals of Coloproctology.2024; 40(4): 375. CrossRef

Colorectal cancer

Total neoadjuvant therapy for rectal cancer: evidence and challenge: Suk-Hwan Lee; Ann Coloproctol. 2023;39(4):301-306. Published online August 29, 2023; DOI: https://doi.org/10.3393/ac.2023.00269.0038

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3 Web of Science
5 Citations

Abstract PDF

Recent advances in the management of rectal cancer have dramatically changed the clinical practice of colorectal surgeons because the main focus of rectal cancer treatment has changed from sphincter-saving to an organ-preserving strategies. Modifying the delivery of systemic chemotherapy to improve patients’ survival is another progress in colorectal cancer management, known as total neoadjuvant therapy (TNT). TNT is a new strategy used by colorectal surgeons to improve the quality of life and survival of patients after treatment. TNT poses limitations or obstacles, such as overtreatment issues in patients with stage I rectal cancer. However, considering the quality-of-life issues in patients with low-lying rectal cancer necessitating a permanent colostomy, the indication for TNT will be expanded. This review summarizes the recently conducted clinical trials and foresees future perspectives on TNT.

Citations

Citations to this article as recorded by

Current Surgical Methods in Local Rectal Excision
Kristina Šemanjski, Karla Lužaić, Jure Brkić
Gastrointestinal Tumors.2024; : 1. CrossRef
Tailoring rectal cancer surgery: Surgical approaches and anatomical insights during deep pelvic dissection for optimal outcomes in low‐lying rectal cancer
Youn Young Park, Nam Kyu Kim
Annals of Gastroenterological Surgery.2024; 8(5): 761. CrossRef
A nomogram for predicting the overall survival in rectal cancer patients after total neoadjuvant therapy
Z. Liu, M. He, X. Wang
Techniques in Coloproctology.2024;[Epub] CrossRef
Impact of the laparoscopic approach, early closure and preoperative stimulation on outcomes of ileostomy closure after rectal resection
Andrea Norte, Carmen Martínez, Ana Pasalodos, Ivette Tort, Anna Sánchez, Pilar Hernández, Jesús Bollo, Eduard Maria Targarona
Cirugía Española (English Edition).2024;[Epub] CrossRef
Unveiling the profound advantages of total neoadjuvant therapy in rectal cancer: a trailblazing exploration
Kyung Uk Jung, Hyung Ook Kim, Hungdai Kim, Donghyoun Lee, Chinock Cheong
Annals of Surgical Treatment and Research.2023; 105(6): 341. CrossRef

Editorial

Colorectal cancer

Prognostic prediction of colorectal cancer using the C-reactive protein to albumin ratio: the importance of inflammatory biomarkers and their association with long-term outcomes: Chul Seung Lee; Ann Coloproctol. 2023;39(4):287-288. Published online August 29, 2023; DOI: https://doi.org/10.3393/ac.2023.00486.0069

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PDF

Case Report

Colorectal cancer

Experience of surgical treatment in a granular cell tumor in the ascending colon: a case report: In-Kyeong Kim, Young-Tae Ju, Han-Gil Kim, Jin-Kwon Lee, Dong-Chul Kim, Jae-Myung Kim, Jin Kyu Cho, Ji-Ho Park, Ju-Yeon Kim, Chi-Young Jeong, Soon-Chan Hong, Seung-Jin Kwag; Ann Coloproctol. 2023;39(3):275-279. Published online July 6, 2021; DOI: https://doi.org/10.3393/ac.2020.00836.0119

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Abstract PDF: We report a case about successful surgical treatment of a granular cell tumor in the ascending colon. A 36-year-old man underwent screening colonoscopy. An endoscopic examination revealed a 10-mm yellowish and hemispheric mass in the ascending colon, and lower endoscopic ultrasonography revealed a hypoechoic-to-isoechoic mass invaded the submucosal layer. The mass was suspected to be a colonic carcinoid tumor. Based on the preoperative evaluation, endoscopic complete resection was considered difficult. Therefore, the lesion was removed via laparoscopic right hemicolectomy. Histological examination revealed that the tumor consisted of nests of polygonal cells with abundant granular eosinophilic cytoplasm. Immunohistochemical staining revealed diffuse positivity for S100 and CD68. Therefore, the tumor was diagnosed as a granular cell tumor. We suggest that surgical resection should be considered if it is located in the thin-walled ascending colon prone to perforation, difficult to rule out malignant tumor due to submucosal invasion, or to remove endoscopically.

Editorial

Colorectal cancer

Organ preservation for early rectal cancer using preoperative chemoradiotherapy: Gyung Mo Son; Ann Coloproctol. 2023;39(3):191-192. Published online June 29, 2023; DOI: https://doi.org/10.3393/ac.2023.00409.0058

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2 Web of Science
2 Citations

PDF

Citations

Citations to this article as recorded by

Performance reporting design in artificial intelligence studies using image-based TNM staging and prognostic parameters in rectal cancer: a systematic review
Minsung Kim, Taeyong Park, Bo Young Oh, Min Jeong Kim, Bum-Joo Cho, Il Tae Son
Annals of Coloproctology.2024; 40(1): 13. CrossRef
Unveiling the profound advantages of total neoadjuvant therapy in rectal cancer: a trailblazing exploration
Kyung Uk Jung, Hyung Ook Kim, Hungdai Kim, Donghyoun Lee, Chinock Cheong
Annals of Surgical Treatment and Research.2023; 105(6): 341. CrossRef

Review

Gene and protein expression of epithelial to mesenchymal transition for intestinal and anal fistula: a systematic review: Nadila Haryani Osman, Ruhi Fadzlyana Jailani, Hayati Abd Rahman, Nazefah Abdul Hamid; Ann Coloproctol. 2023;39(2):106-114. Published online December 3, 2021; DOI: https://doi.org/10.3393/ac.2021.00584.0083

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2 Citations

Abstract PDF

Purpose
Intestinal fibrosis is a common complication of inflammatory bowel diseases. However, the possible involvement of epithelial-mesenchymal transition (EMT) has been scarcely investigated. This systematic review aims to search through research papers that are focusing on messenger RNA (mRNA) and protein expression profile in EMT in fistula or in intestinal fibrosis.
Methods
Electronic exploration was performed until April 24, 2019 through PubMed, Ovid, Science Direct, and Scopus databases with the terms of “fistula” OR “intestinal fibrosis” AND “epithelial-mesenchymal transition”. Two independent reviewers scrutinized the suitability of the title and abstract before examining the full text that met the inclusion criteria. For each study, the sample types that were used, methods for analysis, and genes expressed were identified. The list of genes was further analyzed using DAVID (Database for Annotation, Visualization, and Integrated Discovery) and KEGG (Kyoto Encyclopedia of Genes and Genomes) pathway.
Results
There were 896 citations found; however, only 3 studies fulfilled the requirements. Among the EMT-related genes, 5 were upregulated genes at mRNA level while 6 were at protein level. However, only 2 downregulated genes were found at each mRNA and protein level. Of the 4 inflammation-related genes found, 3 genes were upregulated at mRNA level and 1 at protein level. These genes were confirmed to be involved in the development of inflammatory induced fibrosis and fistula through EMT. Results from quantitative real-time polymerase chain reaction analysis were consistent with the process of EMT, confirmed by the western blot protein analysis.
Conclusion
Many significant genes which are involved in the process of EMT in fistula and intestinal fibrosis have been identified. With high-end technology many more genes could be identified. These genes will be good molecular targets in the development of biomarkers for precision drug targeting in the future treatment of intestinal fibrosis and fistula.

Citations

Citations to this article as recorded by

Role of Adipose Tissue Hormones in Pathogenesis of Cryptoglandular Anal Fistula
Marcin Włodarczyk, Jakub Włodarczyk, Kasper Maryńczak, Anna Waśniewska-Włodarczyk, Urszula Doboszewska, Piotr Wlaź, Łukasz Dziki, Jakub Fichna
International Journal of Molecular Sciences.2024; 25(3): 1501. CrossRef
Exosomes Derived from Colon Cancer Cells Promote Tumor Progression and Affect the Tumor Microenvironment
Minsung Kim, Il Tae Son, Gyoung Tae Noh, So-Youn Woo, Ryung-Ah Lee, Bo Young Oh
Journal of Clinical Medicine.2023; 12(12): 3905. CrossRef

Original Articles

Effect of reinforcement suture on anastomotic healing in rectal and sigmoid tumor resections, single-center experience: a retrospective case-controlled study: Tomáš Řezáč, Petr Špička, Pavel Zbořil, Martin Stašek, Radek Vrba, Dušan Klos; Ann Coloproctol. 2023;39(2):139-146. Published online March 11, 2022; DOI: https://doi.org/10.3393/ac.2021.00948.0135

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Abstract PDF: Purpose
Healing of colorectal anastomosis is burdened with a number of risk factors and the development of leak carries with it higher morbidity and mortality associated not only with worse quality of life but also worse oncological outcomes. The purpose of the study was an evaluation of the effect of reinforcement suture in the healing of stapler rectal anastomosis and risk factors for anastomotic leakage in mid, upper rectal and sigmoid tumors.
Methods
A total of 357 patients who underwent curative resection for rectal or sigmoid tumor over 5 years were analyzed. Risk factors, baseline demographic and clinical data, and presence of leak were recorded. All statistical analyses were carried out at a significance level of P<0.05.
Results
One hundred fifty-one patients met the inclusion criteria for the study. The overall incidence of leak was 2.8% in the group with reinforcement suture and 6.3% in the group without reinforcement suture. Because of the low incidence of leak the results were not statistically significant. Further results also show that none of the monitored parameters (age, weight, body mass index, tumor distance, preoperative radiotherapy, tumor stage, type of surgery) were significant predictors of anastomotic leakage.
Conclusion
Although the reinforcement suture is a safe and simple option for anastomosis protection after rectal or sigmoid resections, its statistical significance was not demonstrated in our study.

An investigation into tumor regression grade as a parameter for locally advanced rectal cancer and 5-year overall survival rate: Supparerk Laohawiriyakamol, Wongsakorn Chaochankit, Worawit Wanichsuwan, Kanet Kanjanapradit, Teeranan Laohawiriyakamol; Ann Coloproctol. 2023;39(1):59-70. Published online March 18, 2022; DOI: https://doi.org/10.3393/ac.2021.01011.0144

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2 Citations

Abstract PDF

Purpose
The standard treatment for locally advanced rectal cancer (LARC) is neoadjuvant chemoradiation (nCRT) followed by surgery. Several parameters are associated with patient survival in LARC. One of these parameters is tumor regression grade (TRG); however, the significance of TRG remains controversial. In this study, we aimed to examine the correlations of TRG with 5-year overall (OS) and relapse-free survival (RFS) and identify other factors that influence the survival rates in LARC after nCRT followed by surgery.
Methods
This retrospective study included 104 patients diagnosed with LARC who underwent nCRT followed by surgery at Songklanagarind Hospital from January 2010 to December 2015. All patients received fluoropyrimidine-based chemotherapy at a total dose of 45.0 to 50.4 Gy in 25 daily fractions. Tumor response was evaluated using the 5-tier Mandard TRG classification. TRG was categorized into good (TRG 1–2) and poor (TRG 3–5) responses.
Results
TRG (classified by either the 5-tier classification system or the 2-group classification system) was not correlated with 5-year OS or RFS. The 5-year OS rates were 80.0%, 54.5%, 80.8%, and 67.4% in patients with TRG 1, 2, 3, and 4, respectively (P=0.22). Poorly differentiated rectal cancer and systemic metastasis were associated with poor 5-year OS. Intraoperative tumor perforation, poor differentiation, and perineural invasion were correlated with inferior 5-year RFS.
Conclusion
TRG was probably not associated with either 5-year OS or RFS; however, poor differentiation and systemic metastasis were strongly associated with poor 5-year OS.

Citations

Citations to this article as recorded by

Performance reporting design in artificial intelligence studies using image-based TNM staging and prognostic parameters in rectal cancer: a systematic review
Minsung Kim, Taeyong Park, Bo Young Oh, Min Jeong Kim, Bum-Joo Cho, Il Tae Son
Annals of Coloproctology.2024; 40(1): 13. CrossRef
Risk-factors for locally advanced rectal cancer relapse after neoadjuvant chemoradiotherapy: A single center experience
Dragana Stupar, Saša Jungić, Zdenka Gojković, Jelena Berendika, Živojin Janičić
Medicine.2023; 102(44): e35519. CrossRef

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